JPH11280004A - Sleeper lifting implement - Google Patents

Abstract

PROBLEM TO BE SOLVED: To secure safety during the lifting operation by suspending a sleeper by a chain block with good balance during the sleeper lifting operation by adopting a structure in which the sleeper can be lifted by being reliably pinched by a function of a tongue device through receiving fittings by operating a chain block, and a support beam having hooking materials on both ends is suspended by the chain block in the central part. SOLUTION: A chain clock 5 is provided on a lateral rod 2 of a main body frame 1 movable along rails R, and a support rod 8 is assembled by hooking its central part of a hook 7 suspended from the chain block 5. Cord bodies 9, 9 are suspended from both ends of the support rid 8, and hooking materials 11 are suspended from the cord bodies 9. Each hooking material 11 is constituted of a tongue device having a pair of supporting pieces for pinching a receiving fitting 14 fixed to the rail R at the facing edges of the lower end.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION When a rail is arranged above a sleeper and fixed to the sleeper, fastening (fixing) work is sometimes performed by lifting the sleeper and pressing it against the bottom of the rail. TECHNICAL FIELD The present invention relates to a sleeper lifter used to lift a rail and maintain a press-contact state against a rail bottom surface of the sleeper.

[0002]

2. Description of the Related Art A leg rod is provided on both sides of a horizontal rod, and a wheel rolling on a rail is pivotally connected to a lower end of the leg rod to form a main frame. There is a structure in which a chain block is provided, and a hook member hanging on a hook suspended from the chain block is attached to a catch fixed to a sleeper arranged below the rail. In the case of the structure, a hook that is hung on a ring body that constitutes the receiving metal member is configured as the hanger (actually, 7-3584).
No. 2).

[0003]

The above prior art is applicable only when a ring is provided on the side of a receiving fitting (generally speaking, a main fitting of a fastening fitting such as a rail clip) in terms of structure. However, it cannot be applied to lifting a sleeper having a receiving bracket not having a ring body.

In order to fix the rail to the concrete sleeper, a fastener comprising a receiving metal and a clip to be attached to the receiving metal is used, and the receiving metal of the fastener is fixed to the crossties in advance. After the rail is laid, means for assembling a clip to the stopper and fixing the rail to the sleeper are adopted. However, the stopper is fixed to the sleeper because of the attachment of the clip. In this structure, side plates opposing each other along the longitudinal direction of the rail are erected, and a protrusion having front and rear inclined surfaces gradually approaching each other from the upper end to the lower end is provided on the outer surface of the side plate.

[0005] The conventional example described in the above-mentioned publication does not have a structure in which a sleeper is lifted using such a receiving metal body.
A sleeper lift using such a receiving fitting body is desired.

[0006]

A main body frame is formed by connecting a leg rod having a wheel rolling on a rail at a lower end thereof to both sides of a horizontal rod, and a chain is provided at the center of the horizontal rod of the main frame. In a sleeper lifter in which a block is provided, and a hook suspended from the chain block is fitted with a hooking material for hooking a receiving bracket fixed to a sleeper arranged below the rail, A hook is attached to the supporting rod, the hanging member is hung on a string suspended on both sides of the supporting rod, and the holding member is provided with a pair of holding pieces for holding the receiving bracket. Means comprising a tong device.

The tongue device means a device for grasping and holding a load by the weight of a suspended load and the action of a link mechanism.

[0008]

1 shows an embodiment of a sleeper lift according to the present invention. FIG. 1 is a front view showing a use state, FIG. 2 is a partially enlarged view of FIG. 1, and FIG. 3 is XX of FIG. FIG. 4 is a side view of the hanging member.

In the figure, reference numeral 1 denotes a main frame, and the main frame 1 is formed by connecting leg bars 3 and 3 on both sides of a horizontal bar 2, and a wheel 4 rotatably connected to a lower end of the leg bar 3. Is mounted on the rail R, and the wheel 4 moves on the rail R by traveling along the rail R, stops at an appropriate position, and maintains an independence state (actual fairness 7-). No. 35842).

A chain block 5 is provided at the center of the horizontal rod 2 of the main frame 1, that is, substantially at the center between the rails R, and a hook 7 is provided at the lower end of a chain 6 suspended from the chain block 5. And a support rod 8 is attached to the hook 7 at the center thereof.

Strings (chains in the embodiment) 9, 9 are suspended at both ends of the support rod 8, and a second hook 10 is attached to the lower end of the string 9.
The hanging member 11 is suspended via a pair of tongs 11A, 11A, and a pair of holding pieces 12, 13 constituting the tong device 11A are used to hold the receiving member 14.
To be clamped.

The receiving metal fitting 14 is provided on the side plate 1 facing the base 16 fixed to the sleeper 15 along the longitudinal direction of the rail R.
7 and 17, and a ridge 18 for attaching a clip is provided on an outer surface of the side plate 17. The catch 11 is formed by the tongue device 11A. The ridge 18 (arranged inside the rail R) is held by the holding pieces 12 and 13.

[0013] The hanging member 11 is composed of the first and second link pieces 1.
The lower end of the first link piece 19 and the lower end of the third link piece 22 are the second axis 23, the lower end of the second link piece 20 and the fourth link piece 24 are pivotally connected to each other by a third shaft 25 at the upper end thereof, and the intermediate portions of the third link piece 22 and the fourth link piece 24 are respectively rotatably connected to each other by a fourth shaft 26. And a pair of the tong devices 11A, 11A corresponding to the side plates 17, 17 of the first tongue devices 11A, 11A, the first shaft 21 and the fourth shaft 26 of each tong device 11A, 11A are shared with each other, A ring piece 27 is provided between the devices 11A, 11A), and the ring piece 27 is hooked on the second hook 10 so that the chain block 5 is driven to hold the ridge 18 of the receiving metal fitting 14. It is something to do.

One of the holding pieces 1 for holding the ridge 18
2 is the lower part of the third ring piece 22 and the other one of the holding pieces 1
Reference numeral 3 denotes a lower portion of the fourth ring piece 24. Opposing edges 12a, 13a on the lower end side of the holding pieces 12, 13 hold the projecting portion 18.

By using the wheels 4 rolling on the rail R, the main frame 1 is positioned at an appropriate position along the rail R,
A ridge 18 of a receiving bracket 16 arranged between the holding pieces 12 and 13 of the tongue device 11A (hung member 11) inside each rail R.
When the chain 6 is wound up by operating the chain block 5 and the cord body 9 is pulled up via the support rod 8, the hook 11 is held by the tongue device 11A to hold the ridge 18 and the sleeper. 15 is pulled up to a position in contact with the lower surface of the rail R, and in this state, a catch 16 existing outside the rail R is attached to the rail R and the sleeper 15.
After assembling, the hook member 11 and the rail R are fixed to each other by removing the hanging member 11 from the inner receiving metal fitting 16 and assembling and fixing the clip to this.

FIG. 33 shows a spacer tube which is attached to the first shaft 21 or the fourth shaft 26 to maintain the interval between the pair of tong devices 11A.

[0017]

The present invention has the configuration described above,
By operating the chain block, it is possible to lift the sleeper by securely holding the receiving metal by the function of the tongue device, and furthermore, the supporting rod having the hanging material at both ends is suspended from the chain block at the center. Because it adopts a configuration that causes
During the lifting operation of the sleeper, the sleeper is suspended on the chain block in a well-balanced manner, so that safety during the lifting operation can be ensured.

[Brief description of the drawings]

FIG. 1 is a front view showing a use state.

FIG. 2 is a partially enlarged view of FIG. 1;

FIG. 3 is a sectional view taken along line XX of FIG. 2;

FIG. 4 is a side view of the hanging member.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Main body frame 2 Horizontal rod 3 Leg rod 5 Chain block 7 Hook 8 Support rod 9 String body 11 Hook material 11A Tongue device 12 Clamping piece 13 Clamping piece 14 Receiving metal fitting

Claims (1)

[Claims] 1. A main frame is formed by connecting a leg rod having wheels that roll on a rail at a lower end to both sides of a horizontal rod, and a chain block is provided at the center of the horizontal rod of the main frame. In a sleeper lift in which a hook suspended from the chain block is fitted with a hook member for hanging a receiving bracket fixed to a sleeper arranged below the rail, a support having a center hooked on the hook is provided. A rod is assembled, the hanging member is hung on a cord body suspended on both sides of the supporting rod, and the hanging member is attached by a tongue device having a pair of holding pieces for holding the receiving bracket. Composed, sleeper lift.